PHYS-91; Multiple Choice: A worker lifts a 10 kilogram block a vertical height of 2 meters. The work he does on the block is: w) 5 Joules v) 20L
Q: ohn, of mass 82.4 kg can do work for about 2.0 minutes at the rate of 1.0 hp. How long will it take…
A: Given data: Mass (m) = 82.4 kg Power (P) = 1.0 hp Height (h) = 12.0 m 1 hp = 746 watts Required:…
Q: A force F = (4xi-3y2j)Nacts on a particle, the particle moves along the x-axis from x= 1 to x = 4m.…
A: Write the expression of the force vector on a particle. F=4xi-3y2j Write the expression of the…
Q: Estimate the kinetic energy of a 90,000-ton aircraft carrier moving at a speed of at 30 knots. You…
A: It is given that,
Q: The figure below shows a fluid inside a cubical container of side 1 m. If the pressures inside and…
A: Since you have asked multiple questions, we will solve the first question for you. If you want any…
Q: As shown in the figure below, a box of mass m = 57.0 kg (initially at rest) is pushed a distance d =…
A: (a) Work done by the applied force is WA=FAdcosθ=216 N98.0 mcos30°=18330 J (b) Work done by the…
Q: The roof of a large arena, with a weight of 480 kN, is lifted by 34 cm so that it can be centered.…
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Q: ) How much work must be done on a heavy object to lower it from a height where it has 4000 J of GPE…
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Q: The work done by a fielder when he takes a catch in a cricket match, is negative. Explain.
A: Write the expression for the work done.
Q: In 1990, Walter Arfeuille of Belgium lifted a 281.5 - kg object through a distance of 17.1cm using…
A: Given data: Mass (m) = 281.5 kg Height (h) = 17.1 cm = 0.171 m The speed of the object is constant…
Q: Is work done whenever an object moves through a distance? Explain.
A: SOlution: To explain, if the work done whenever an object moves through a distance
Q: A piano mover rolls a 200 kg piano at constant speed up a ramp 2m long at an angle of 30 degrees…
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Q: You are reshelving books in your dorm room. You lift a book from the ground to the top shelf. The…
A: According to the question, the kinetic energy at the ground and at the final height h(say), the…
Q: A force acting on a 1.0-kg object is described by the equation F = (2.0x3.5) i N. (a) Plo the force…
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Q: A box (5kg) slides 1m down a 30° incline from rest. a) how much work is done by gravity? b) find the…
A: a) work done by gravity is equal to Wg=mgdsinθ=5×9.81×1×sin30=24.52J b) magnitude of friction…
Q: A 75-kg man is carrying a 50-kg crate as he ascends to the sixth floor of a building through an…
A: Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…
Q: A Net Force Fnet=(x-3x2)i + (2y2-y3)j acts on a 3.5 kg particle. a) Calculate the net work done on…
A:
Q: 40. A car without gas is pushed along a horizontal concrete road with a constant amount of force by…
A: From Newton's laws of motion we have, F=ma Here, F is the applied force, m is the mass and a is the…
Q: Do it asap
A: Given that-Mass of the sled, m= 70 kgLength of the plane, L= 80 mAngle of inclination of the plane…
Q: 4kg eagle picks up a 75g snake and raises it 2.5 m from the ground to a branch. What is the work…
A: Given: mass of eagle = 4kg mass of snake = 75g altitude = 2.5 m
Q: Under what conditions is the work done i) maximum and ii) minimum?
A: Given:- Under the condition for the work done i. maximum ii. minimum is following…
Q: Suppose you need to lift a 20 kg box by a height of 1.0 m. (i) You hold the box and lift it…
A: Given data: The mass of the box is m=20 kg. The height of the box lift is h=1.0 m. The inclination…
Q: On the y-axis (Free Fall, thus FG = W =mg), a 9 kg object is released from 15 m. a. Calculate the…
A: Here we have to use formula for calculating work done that is given as W= F.dr Here F is force dr…
Q: A 2.5 kg rock is released from rest at the surface of a pond 1.8m deep. As the rock falls, a…
A:
Q: The next horizontal force on a box F as a function of the horizontal position x is shown below.…
A: Ans:- Image-1
Q: Identify a case where an object is moving over a surface with friction, but the frictional force…
A: When the object moves in a pure rolling motion, the work done by the friction will be zero.
Q: Bimby Aquino is in the garden and cutting the grass. He uses the machine that slashes grass with a…
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Q: if you push a fridge with 20N force for a 5m distance, how much work did you do? (ignore friction)
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Q: 3) In the plot shown of force vs. distance, approximately how much work is done in moving an object…
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Q: 33. When a body slides against a rough horizontal surface, the work done by friction is O positive O…
A: Given that, A body slides against a rough horizontal surface.
Q: In 1990 Walter Arfeuille of Belgium lifted a 281.5-kg object through a distance of 17.1 cm using…
A: (a) Work done is given by,
Q: An Athlete pulls a 20 kilograms crate along Lane A of the storage house. Lane A is a 15m aisle.…
A:
Q: A 50 kg woman gets on an elevator at the ground floor [0h floor] of a skyscraper and pushes a…
A: Given that, m=50 kga=- 2 m/s2
Q: Find the work done in joules by gravity as an object of the mass m-8 kg is raised up at constant…
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Q: Which do you think requires more work: moving up stairs at a slow speed (ex: walking) or moving up…
A: We know the formula of work W= F × S Where F =Force S= displacement
Q: 4 m 3 m Your mass is 50 kilograms, and you take a ride down the slide shown in the picture (with a…
A:
Q: 14: A constant force of (121) N acts on a 4.0-kg object as it moves from the origin to the int…
A: Since you have asked multiple question, we will solve the first question for you. If you want any…
Q: An object of mass m is compressed against a horizontal and ideal spring of constant k by mount Ax.…
A: Here we have to use conservation of total energy. equating total energy at compressed position at…
Q: The net horizontal force on a box F as a function of the horizontal position x is shown below.…
A: Ans:- Image-1
Q: (2) The combined force of lift and thrust on a model airplane is a constant F = (4i + 3j + 6k) N. a.…
A:
Q: A block slides 42 m down a ramp that makes an angle of 60° with the ground. Determine the mass of…
A: We have to use the formula W= F * s for this problem
Q: a weight lifter holds a 50kg weight a distance of 3m above the ground for 30 seconds.How much work…
A: Weight lifter makes an angle 900(perpendicular) with gravity, Work done (W) = Fd cos900…
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